Home / 401,979.87-602,983.35-202,191.33

Finding the Fourth Proportional to 401,979.87, 602,983.35 and 202,191.33

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Solution

The fourth proportional to 401,979.87, 602,983.35 and 202,191.33 is: 303,293.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,979.87 : 602,983.35 = 202,191.33 : x
  2. Step 2: Convert to fraction form
    401,979.87/602,983.35 = 202,191.33/x
  3. Step 3: Cross multiply
    401,979.87x = 602,983.35 × 202,191.33
  4. Step 4: Simplify right side
    401,979.87x = 121,918,005,504.36
  5. Step 5: Solve for x
    x = 121,918,005,504.36/401,979.87
  6. Step 6: Final answer
    x = 303,293.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.